Home / 12,774.24-19,159.94-3,415.23

Finding the Fourth Proportional to 12,774.24, 19,159.94 and 3,415.23

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Solution

The fourth proportional to 12,774.24, 19,159.94 and 3,415.23 is: 5,122.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,774.24 : 19,159.94 = 3,415.23 : x
  2. Step 2: Convert to fraction form
    12,774.24/19,159.94 = 3,415.23/x
  3. Step 3: Cross multiply
    12,774.24x = 19,159.94 × 3,415.23
  4. Step 4: Simplify right side
    12,774.24x = 65,435,610.42
  5. Step 5: Solve for x
    x = 65,435,610.42/12,774.24
  6. Step 6: Final answer
    x = 5,122.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.